add docker setup

docker-compose.yml

@@ -0,0 +1,120 @@
+# Arbiter Docker Compose configuration
+# Usage:
+#   Development: docker compose up
+#   Infrastructure only: docker compose up db redis
+#   Production: docker compose -f docker-compose.yml -f docker-compose.prod.yml up
+
+services:
+  # PostgreSQL database
+  db:
+    image: postgres:16-alpine
+    container_name: arbiter-db
+    environment:
+      POSTGRES_USER: arbiter
+      POSTGRES_PASSWORD: arbiter
+      POSTGRES_DB: arbiter
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U arbiter -d arbiter"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # Redis for job queue and caching
+  redis:
+    image: redis:7-alpine
+    container_name: arbiter-redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    command: redis-server --appendonly yes
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # API server
+  api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: arbiter-api
+    ports:
+      - "8000:8000"
+    environment:
+      ARBITER_DATABASE_URL: postgresql+asyncpg://arbiter:arbiter@db:5432/arbiter
+      ARBITER_REDIS_URL: redis://redis:6379/0
+      ARBITER_TEMPLATES_DIR: /app/templates
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      interval: 30s
+      timeout: 10s
+      start_period: 10s
+      retries: 3
+    volumes:
+      - ./templates:/app/templates:ro
+
+  # Background worker
+  worker:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: arbiter-worker
+    command: ["python", "-m", "arq", "arbiter.worker.settings.WorkerSettings"]
+    environment:
+      ARBITER_DATABASE_URL: postgresql+asyncpg://arbiter:arbiter@db:5432/arbiter
+      ARBITER_REDIS_URL: redis://redis:6379/0
+      ARBITER_TEMPLATES_DIR: /app/templates
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    volumes:
+      - ./templates:/app/templates:ro
+
+  # Dashboard UI
+  dashboard:
+    build:
+      context: ./dashboard
+      dockerfile: Dockerfile
+    container_name: arbiter-dashboard
+    ports:
+      - "3000:80"
+    depends_on:
+      api:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:80"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  # Database migrations (run once)
+  migrate:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: arbiter-migrate
+    command: ["python", "-m", "alembic", "upgrade", "head"]
+    environment:
+      ARBITER_DATABASE_URL: postgresql+asyncpg://arbiter:arbiter@db:5432/arbiter
+    depends_on:
+      db:
+        condition: service_healthy
+    profiles:
+      - migrate
+
+volumes:
+  postgres_data:
+  redis_data: